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Why does my matlab R2014a be so slow in initilization ??
<http://www.mathworks.com/matlabcentral/answers/97167-why-will-matlab-not-start-up-properly-on-my-windows-based-system>

11年以上前 | 0

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Convert strings to array of function handles
a = [1 2 3]; b = circshift(a,[0 -1]); all_num = [a;a;b;b]; argument = sprintf('a(%i)*x(%i)^3 - b(%i)*x(%i)\r\n',...

11年以上前 | 0

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Efficient way to calculate backwards average
numRows = 100; numCols = 100; data = rand(numRows,numCols); result = flipud(bsxfun(@rdivide,cumsum(flipud(data)),...

11年以上前 | 1

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Seeking a fast way to determine if axes are current
isempty(get(gcf,'CurrentAxes')) will tell you if there are any current axes in _gcf_ . This is basically an edit of the _g...

11年以上前 | 0

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How to use datestr(now)
vec = datevec(now); month_list = {'January' 'February' 'March' 'April' 'May' 'June' ... 'July' 'August' 'September' ...

11年以上前 | 0

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Generate n pairs of random integers, whose 0 <= pairwise_sum <= k
num_pairs = 100; max_val = 10; tot_sum = randi(max_val + 1,[num_pairs,1]) - 1; %Need to include 0 result = rand(n...

11年以上前 | 0

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How to permanently change the temp directory matlab uses?
<http://answers.microsoft.com/en-us/windows/forum/windows_7-files/change-location-of-temp-files-folder-to-another/19f13330-dde1-...

11年以上前 | 0

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How do I find the Nth high number in a matrix A ?
If you want to take care of repeated values: vals = randi(200,10); uVals = sort( unique(vals(:)) ); result = uVals(end-4...

11年以上前 | 0

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How to use parallel computing
In order for Matlab to compute the functions on different cores (not the same as different processors), you could always: a ...

11年以上前 | 0

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Excel to Text Conversion
The easy way: Import to matlab using [numData textData rawData] = xlsread('myFile.xlsx'), %doc xlsread for more details ...

11年以上前 | 2

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Problem using ttest and signrank functions
[p, h, stats] = signrank(squeeze(post), squeeze(pre), 'alpha', pval);

11年以上前 | 0

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Why Kmeans function give us give different answer?
Because, if you are using the default settings, _kmeans()_ *randomly selects a starting point*. The algorithm is not determinist...

11年以上前 | 1

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how to display a direction vector in matlab
doc quiver doc feather

11年以上前 | 0

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delete zero rows only with one number
your_mat = A(all(A(:,2:end),2),:)

11年以上前 | 1

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how to implement hanning window with 50% overlap
Please make it easier for to help you and <http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-ques...

11年以上前 | 0

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MCR not found when running application
You need the right version of the <http://www.mathworks.com/products/compiler/mcr/ Matlab Compiler Runtime> installed in that ma...

11年以上前 | 1

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Splitting up a vector into a matrix
data = rand(3); result = reshape(data,3,3)';

11年以上前 | 1

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I have a question about how to display a result in static text.
sprintf('The flow obtained for %f is %f, and pressure line for this value is %f',[1.1 pi exp(1)])

11年以上前 | 0

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Cannot set axes limits
Set the limits *after* you issue the _plot()_ command.

11年以上前 | 0

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eigen vectors and values algorithm
Matlab uses BLAS and LAPACK. <http://www.physics.orst.edu/~rubin/nacphy/lapack/eigen.html> If you want to know the actual...

11年以上前 | 0

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Calculate difference between two times?...something it's wrong here¡
What makes you think it should be _0000 00 01 03 00 00_? From the documentation: *A serial date number represents a calend...

11年以上前 | 3

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how plot X=const
x = 1:100; y = cos(x .* 2 .* pi ./100); X = rand(1,10) .* 100; Y = interp1(x,y,X); plot(x,y,'r-','Marker'...

11年以上前 | 0

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how to plot a 3-dimensional matrix
doc plot3

11年以上前 | 2

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Warning: Name is nonexistent or not a directory
Look at the documentation on _exist()_. _functions()_ is a built-in Matlab function, it is not a path. But more importantly, pat...

11年以上前 | 0

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Simple help needed with identity matrices and selection
Almost there: A=eye(6,6); A(1:3,4:6)=eye(3); A(4:6,1:3)=eye(3); _eye_ without arguments returns 1.

11年以上前 | 0

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Possible to run matlab frontend on one Linux box, backend on another?
<http://enews.techsource.com.sg/oct11/spotlight.html Yes>, but not automagically and with significant drawbacks if, like me, you...

11年以上前 | 0

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How to scale/normalize values in a matrix to be between -1 and 1
Once you have your result: scaledl = scaledl.*2 - 1; Or directly: result = -1 + 2.*(data - min(data))./(max(data) - m...

11年以上前 | 4

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How to plot a offset in a graph
I am not sure I understand what you want to achieve. x = sort(rand(10,1)); y = sort(rand(10,1)); plot(x,y,'b-') hold...

11年以上前 | 0

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Why is sort() taking longer to resolve on multiples of 512?
Maybe it has something to do with data padding. If you use single precision format, then the jumps come at multiples of 1024. (S...

11年以上前 | 0

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Finding parfor baffling: Can anybody explain to me why this little bit of code works with for,but not with parfor?
Looks like the interpreter is not smart enough to detect that there is no race condition in the case you present. You could go a...

11年以上前 | 1